正則表達式換行$ {color}和$ color

有沒有辦法讓這個正則表達式在開始處放置$ {color orange}，並在找到該日期的行的末尾放置$ color？

DJS=`date +%_d`; 
cat thisweek.txt | sed s/"\(^\|[^0-9]\)$DJS"'\b'/'\1${color orange}'"$DJS"'$color'/

有了這個表達我得到這個：

Saturday Aug 13 12pm - 9pm 4pm - 5pm Sunday Aug 14 9:30am - 6pm 1pm - 2pm Monday Aug 15 6:30pm - 11:30pm None Tuesday Aug 16 6pm - 11pm None Wednesday Aug 17 Not Currently Scheduled for This Day Thursday Aug ${color orange}18$color Not Currently Scheduled for This Day Friday Aug 19 7am - 3:30pm 10:30am - 11:30am

我想擁有的是：

Saturday Aug 13 12pm - 9pm 4pm - 5pm Sunday Aug 14 9:30am - 6pm 1pm - 2pm Monday Aug 15 6:30pm - 11:30pm None Tuesday Aug 16 6pm - 11pm None Wednesday Aug 17 Not Currently Scheduled for This Day ${color orange}Thursday Aug 18 Not Currently Scheduled for This Day$color Friday Aug 19 7am - 3:30pm 10:30am - 11:30am

來源

2011-08-19 TooTallGavin

你基本上有釘;如果這對你不起作用，我懷疑這是因爲不兼容的正則表達式構造 - 我不認爲我已經看到了例如'grod \ b'的'sed'。此外，失去無用的貓。 – tripleee

重新編輯：啊。那麼，從原來的措辭來看，這不太容易知道;）我會更新我的答案 – carlpett

~~Acually，它爲我工作。根據您的 sed版本，您可能需要通過 -r。此外，作爲tripleee說，不使用 cat這裏~~

DJS=`date +%_d` 
sed -r s/"\(^\|[^0-9]\)$DJS"'\b'/'\1${color orange}'"$DJS"'$color'/ thisweek.txt

編輯：好了，用新的信息，我來到這個：

sed -r "s/([^0-9]+19.+)/\${color orange}\1\$color/" thisweek.txt

這給了我輸出

Saturday Aug 13 12pm - 9pm 4pm - 5pm 
Sunday Aug 14 9:30am - 6pm 1pm - 2pm 
Monday Aug 15 6:30pm - 11:30pm None 
Tuesday Aug 16 6pm - 11pm None 
Wednesday Aug 17 Not Currently Scheduled for This Day 
Thursday Aug 18 Not Currently Scheduled for This Day 
${color orange}Friday Aug 19 7am - 3:30pm 10:30am - 11:30am $color

（請注意，由於它至少在我的時區是星期五，因此與您的區別不同）

來源

2011-08-19 09:17:32 carlpett

真棒謝謝，正是我所需要的。 – TooTallGavin

正則表達式換行$ {color}和$ color

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